I can't speak to what the Isles would do. However, it is possible for both teams to not like a deal. As a Blues fan, I wouldn't do it. Husso is the type of goalie that the Blues need. Sorokin is more like Allen, who many fans don't see as the best fit stylistically. Great goalie for sure, but not a fit for the team. Husso is a positional goalie with good size who plays big and stops the shots he is supposed to. Sorokin (from reading scouting reports and an admittedly small sample size of viewing) is a skinny goalie who uses athleticism to great extent but has a tendency to slide out of position (Ryan Miller type, and that was a disaster for the Blues). Blues defense is best when pushing offense to the low-to-mid danger scoring areas. When goalies let shots in that the D funneled to safe areas, the D start to overplay in an effort to suppress all shots, and end up giving up way more high-danger chances. Elliott played more like Husso, and he has the best GAA, Save percentage and most shutouts amongst Blues all-time, despite not being the best goalie. He did so because his style fit really well in StL. So if Husso becomes a better version of Elliott, most Blues fans would be extremely happy rather than getting another Allen type, even if that type is more athletic and makes crazier saves.